[Bug 256216] Re: Ubuntu is missing /dev/infiniband/rdma_cm group ownership udev rule

[Roland Dreier]

 > Past history is irrelevant.

I think backwards compatibility and simplicity count for something.  The
only point about libibverbs is that the group rdma permissions are
already applied to /dev/infiniband/uverbsX, and the class of
users/applications that use those nodes are the same as the ones that
would use /dev/infiniband/rdma_cm.  So given that any systems where
libibverbs is in use have already configured the rdma group, it seems we
should at least consider whether we want to break that setup and/or
introduce a different mechanism to do the same thing.

 > We are attempting to avoid "groups for device node access" wherever
possible.

I think I've gotten that message.  But could you give a hint as to what
alternative mechanism you are using?  It's very frustrating to get
replies to all my comments except for when I ask what you want me to do.

-- 
Ubuntu is missing /dev/infiniband/rdma_cm group ownership udev rule
https://bugs.launchpad.net/bugs/256216
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